Borehole Heat Exchangers- Longterm Operational Characteristics Of A Decentral Geothermal Heating System

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Journal Article: Borehole Heat Exchangers- Longterm Operational Characteristics Of A Decentral Geothermal Heating System

Abstract
The heat pump-coupled borehole heat exchanger (BHE) is an efficient and small geothermal energy system for supplying heat typically to a single dwelling house. The long-term performance characteristics have been investigated by computer simulations. The numerical models were validated by measurements at instrumented BHE facilities. The results show the development of a new thermal equilibrium state after the first few years of BHE operation. The thermal influence is limited to the first few meters of the ground surrounding the BHE. The BHE could be scaled up in order to be installed in deep "failed" holes (e.g. dry geothermal or hydrocarbon exploration holes).

Authors 
Ladislaus Rybach, Walter J. Eugster, Robert J. Hopkirk and Bruno Kaelin








Published Journal 
Geothermics, Date Not Provided





DOI 
10.1016/0375-6505(92)90037-A


 

Citation

Ladislaus Rybach,Walter J. Eugster,Robert J. Hopkirk,Bruno Kaelin. . Borehole Heat Exchangers- Longterm Operational Characteristics Of A Decentral Geothermal Heating System. Geothermics. (!) .